Side frame



D. s. BARROWS sID'E FRAME A'ug. 12, 1930.

Filed Aug. 31. 1926 Patented Aug. 12, 1930 UNITED STATES PATENT'ori-'Ica DONALD S. BARROWS, OI' ROCHESTER, N YORK, ASSIGNOR TO THE GOULDCOUPLER COMPANY, OF DEPEW, NEW YORK, A CORPORATION OF MARYLAND v SIDE,FRAME lApplication Bled August 31, 1928. Serial-'Nm 132,737.

j, This invention relates to side frames and, more particularly, to suchframes for rallway 4car trucks which are integrally formed by castin eThe principal object of my invention, generally considered, is theprovision of avcast side frame for railway car trucks in which thetension member thereof is specially reinforced at the junction betweenits c'entral or intermediate substantiall horizontal portion andthe'diagonal-en portions thereof.

An object of my invention is the provision of a cast side frame forrailway car trucks in which the tension member is generally U Vshape incross section and the lower web thereof is bulged downwardly at thejunction between the horizontal intermediate portion and the diagonalend portions for increasing the strength ofthe frame at these points. v

a vAnother object of my invention is the provision of a truck side frameintegrally formed with a tension member general y Ushape in crosssection and bolster guide columns extending upwardly therefrom, saidtensionmember being normally horizontal between said bolster guidecolumns with end portions extending diagonally upward and outwardtherefrom, the web of saidtension member, beneath the guide columns,being first curved downwardly from thevend porf tions and then curvedupwardly to join with the horizontal intermediate portion immediatelybeneath each bolster guide column for increasing the strength of theframe at these points.

Other objects and advantagesof the invention relating to the particulararrangement and combination of the variousv parts willi become apparentas the descriptionprocee' s. Referrin to the drawings illustrating myinvention, t e scope whereof is pointed out in the gppended cla1ms:`

`Figure lis a partial side elevation, shown partly in section, of a sideframe embodying' my invention.

Figure 2 is a transverse sectional view on the line 2-2 of Figure 1.

Figure 3 is a horizontal sectional view on the line 3-3 of Figure 1looking in the direction of the arrows.

Referring to the drawings in detail, like parts `being designated/bylike reference characters, there is illustrated the lower centralportion of a side frame 1 especially adapted for railway car trucks, theremainder of said frame, being of oldor well known construction and notinvolving features of my present invention, not being illustrated.

In the embodimentshown, the frame comprises a tension member 2 withbolsterl ide columns 3 extending upwardly there rom. The lower ends ofthe columns merge into the tension member with the junctions preferablyfilleted or curved as illustrated.v As will be understood, the sideframe is symmetrical and said bolster guide columns are adapted to spacethe intermediate portion of the tension member 2 from a compressionmember (not shown) and the ends of said compression and tension membersjoin adjacent journal boxes (not shown)'or portions ofthe frame adaptedfor connection with journal boxes. p

In the present embodiment of my invention, the tension member 2, betweenthe bol-I ster guide columns 3 which, with the tension and compressionmembers,'dene a bolster or window opening 4, is normally horizontal andof uniform or substantially constant depth,and those portions outside ofthe bolstraight down from the end portions to join with the intermediatehorizontal portion of said web and curving only in one direction, thatis, upwardly at said junction, said web 5, in accordancev with myinvention, is rst formed concave downwardlly as indicatedfat 6 and thenformed lconcave upwardly as indi- .cated at 7 The centers or axes ofcurvature of the portions 7 concave upwardly preferably correspondsubstantially with the centers or axes of the corresponding filletsbetween the inner or adjacent faces of the co1- umns and the upper web 8of the tension member. The axes of curvature are theren fore dis osedabove thetension member, themember is materially increased in strengthat said junctions and where it joins with the bolster guide columns. yInasmuch as these junctions are critical portions of the side frame,such increases in strength improve the general strength ofthe frame as awhole without involvingany material increase in the weight thereof.

Although the tension member 2 is generally U shape in cross section, yetit is preferably formed with an upper substantially flat web Sbetweenthe bolster guide columns 3 forming a spring plank seat portion whichmay be rovided as usual with A. R. A. sguarin ugs 9. Said spring plankseat por tion 8, eing wider than the normal width of the tension member,is preferably'braced` beyond the side webs or'flanges 10 of said tensionmember by triangular gusset or bracing portions 11. Beyond thespringplank seat portion, beneath the' bolster guide columns, theexternal portions or portions'extending beyond the webs 10 of thetension member are tapered off to merge lwith said tension member beyondthe bolster guide columns as indicated at 12. It' will be noted thatalthough these continuations 'are extended dia onally upward, yet theangular' ity thereo is not quite as 'great as'that of the endportionslof the tension member.

The intermediate portion ofthe spring i plank seat 8 or that portionbetween the webs or flanges 10 of the tension member-is bifurcatedbeneath the bolster guide columns and tapered off to merge with the sidewebs or flanges 10 of the tension member as indicated particularly at13. It will be noted` that the -angularity or inclination of theseextensions 13 is greaterthan that of the extensions 12 althou h not asgreat as the gen- 'eral inclination o thenendportions of the tensionmember 2.

Although only a portion has been illustrated so as to more clearly pointoutfthe invention, it will be understood that ,the remainder of theframe which is not il- ,-lustrated may conform to standard ordesirablepractioe in connection with the normal manufacture of suchframes.

From the foregoing disclosure, it will be apparent that I have inventeda side frame in .which the vstrength thereof and particularly.'thewstrengthoffthe tension member at -the ortions on o site sides o oftheside frame. .extendin junctions with the bolster guide columns ismuch increased without involving an material increase in Weight or sizeof sai frame the frame, a general improvement in the constructionthereof has been effected.

YHaving, now described my 4 invention, I claim y v 1. A side framecomprising a tension member formed-with a' lowerl weband upstandingflanges on the sides of said web, said tension member vbeing formed witha central or 'intermediate horizontal portion formed with an upper webextended beyond the sides of the member to provide a spring plank seatportion, and upwardly and outwardl ex-l tending end portions, the upperweb o said member beyond the sides thereof bein continued upwardly andoutwardly along t e end ortions and ta ered to merge with the sides ofthe frame a ove but closer to the webs of the end portions of thetension member than the to edges of the flanges thereof, the lower webolf) said member, where each end portion joins .the central orintermediate oition, being first concave downwardlyan then concaveupwardly for increasing the strength of the member at said junctions. y

2. A side frame comprising'a tension member generally U shape in crosssection, the intermediate portion thereofA being substantiallyhorizontal and formed with an upper web extended laterally beyond thesides of the member to provide adequate spring plank seat area, and theend portions extending diago-v nally upward therefrom, the'iu per web ofsaid member between the sides t ereof being bifurcated -adjacent `theends of the inte'rmediate portion and tapered upwardly and outwardly tomerge into the side walls of the frame, thelower web of said member, ateach junction between. an end portion and the intermediate portion,being bulged downward to strengthen said member at said junctions.

3. A side frame comprising a tension mem-.l ber and bolsterguide'columns extending upward therefrom, said tension member beinggenerally U shape in cross section, the portion thereof, between thebolster guide columns, being normally horizontal and formed with and, asthese junctions are critical portions of las.

an upper web extended beyond the sides of the member to provide a springplank seat, the said columns, diagonally upward therefrom, the

upper we of said member beyond the sides lthereof being continuedbeneath the guide columns upwardly and outwardly along end portions andtapered to merge into the sides of the frame,'=the plane of said webbein disposed between'the planes of the web and the upper edges of theflanges of the diagonal end portions of the tension member, the lowerweb ofvsaid tension member, immediately below each Lbolster'- iguide.;column, 1 curving, downward at the end portion's of said member and a jthen curving upward to joint withthe horizontal portion of said'memberfor-'increasing the strength at the bolster columns." l

4. A side frame comprising a tensionv member formed with a lower web andupstandmg flanges on the sides of said web, bolster gu1de columnsextendin l upwardly therefrom and integraltherewith, that-portion. ofthe ltension member, between the bolster guide columns, being .normalihorizontal and formed with an `upper we extended beneath Vmember 'forincreasing the strength at the the guide columns, and those portions,outside y of said columns','extending upwardly and. outwardly therefrom,the. upper web of said member between the sides thereof bein-bifurcatedV beneath the guide columns' wit the bifurcations taperedupwardly and outwardly to merge into the side walls ofthe frame, thelower web of said tension member, immediately below each guide column,being concave downwardly adjacent the end portions of the member and.then concave upwardly. adjacent the horizontal portion of the junctionswith the bolster gui'decolumns.

A side frame comprismg a tension member formed with a lower wenv and ustanding flanges at the sides o'f said web, said tension member beingformed with -an intermediate Substantially horizontal' portion with an.up-

.per web extended beyond lthe sidesM of the member toy provide a springplank seat portion of the desired width, and upwardly and outwardlyextending end portions, the upper web of said member beyond the sidesthereof being continued upwardly and outwardly along the end portionsand tapered to merge with the sides of the frame between the planes ofthe webs 'of said end portions and the upper edges of theflangesthereof, 'the wardly therefrom, said tension member beinggenerally U shape in cross section, the portion thereof between theguide columns being normally horizontal and formed with an upper web,extended beyond `the sides of the member and reinforced by outwardlyextending triangular gussets from the sides of vsaid member to saidextended portions of the` web to provide a-spring plank seat, theportions 'of vsaid tension-member on Iopposite sides of the columnsextending diagonally junction with the member beyond the sides thereofbeing continued diagonally upward and outward alon the 'lower portionsof the guidecolumnsan the end portions of the tension member and taperedto mer e into the-sides of the frame, the'plane of sa1d web beingdisposed between the lower web of the end portions and the upper edgesof the flanges thereof, thelower web of `said tension member adjacentthe junctions between the guide columns and the ends and intermediate'portion of the tension member curving first upward as it is continuedoutwardJ from the intermediatepor-` tion and thendownward to aligngenerally with the'webs of the diagonal end portions.

'upward therefrom, the upper web of said'v 7.'.A side frame comprisinga. tension member generally U-shaped in cross section, theintermediateportion thereof being substantially horizontal and `having an upper webextended laterally 'beyond the sides tending diagonally upward therefrombetween the sides of the tension member and bifurcated adjacent thelends 'of the interme-v diate portion, said bifurcated portions beingthereof to provide adequate-spring plank.v

seat area, the end portions of said web extapered upwardly and outwardlytomerge into the side walls of said member, the'lower web of'said memberbeing curved-first-one way and then the other to unite the endandintermediate portions thereof and strengthen the junctiontherebetween.

8. A s ide frame comprising a tension member having a lower web andupstanding flanges on the sides there0f,bolster guide col-` umnsextending upwardly therefrom, thati portion of the tension memberbetween the guide columns beings normally horizontal l `and having anupper web extended beneath said guide-columns, those portions of the icsmember outwardly of said columns extending diagonally upward therefrom,the upper we of said member between the flanges thereof beingbifurcatedV beneath the guide columns,

with the parts thereof tapered upwardly and v outwardly to merge intothe flanges of said member, the lower web of said tension member beingcurved directly beneaththe guide columns to unite the horizontal anddiagonal portions thereof.

In testimony whereof I aliix my signature. l DONALD S. BARROWS.

